diff --git a/vllm/block.py b/vllm/block.py
index 70479a995e65b..dc8b94c8ca4d4 100644
--- a/vllm/block.py
+++ b/vllm/block.py
@@ -60,6 +60,7 @@ def __getitem__(self, key):
         return self._blocks[key]
 
     if "TYPE_CHECKING":
+
         def __iter__(self) -> Iterator[PhysicalTokenBlock]:
             raise RuntimeError("Method should be automatically generated")
 
diff --git a/vllm/core/block_manager_v1.py b/vllm/core/block_manager_v1.py
index a507641f93df4..b7fe8d3fb33f7 100644
--- a/vllm/core/block_manager_v1.py
+++ b/vllm/core/block_manager_v1.py
@@ -321,7 +321,8 @@ def _allocate_sequence(self, \
             for logical_idx in range(num_prompt_blocks):
                 if (self.block_sliding_window is not None
                         and logical_idx >= self.block_sliding_window):
-                    block = block_table[logical_idx % self.block_sliding_window]
+                    block = block_table[logical_idx %
+                                        self.block_sliding_window]
                     # Set the reference counts of the token blocks.
                     block.ref_count = ref_count
                 elif not is_encoder_decoder and self.enable_caching:
diff --git a/vllm/core/scheduler.py b/vllm/core/scheduler.py
index 44728c69f461b..1a3d04859701c 100644
--- a/vllm/core/scheduler.py
+++ b/vllm/core/scheduler.py
@@ -288,7 +288,8 @@ def scheduler_running_outputs_builder():
 
 
 def scheduled_seq_group_builder():
-    return ScheduledSequenceGroup(SequenceGroup("", [], -1), token_chunk_size=0)
+    return ScheduledSequenceGroup(SequenceGroup("", [], -1),
+                                  token_chunk_size=0)
     # return ScheduledSequenceGroup(seq_group=None, token_chunk_size=0)